Gedex Systems Inc.
4 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
3
Ending by 2030
Dec 2028
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Nov 26, 2026The maintenance fee for Quadrupole responder for OQR-type gravity gradiometer (US 9,038,457) comes due Nov 26, 2026. Unpaid by May 26, 2027, it lapses early.
- 1 fee due Mar 1, 2027The maintenance fee for Single axis rotational gas bearing with feed-through (US 9,121,447) comes due Mar 1, 2027. Unpaid by Sep 1, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
Showing 1 to 7 of 7
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,874,358 | Method for oil sand exploration and development In force · From the USPTO record | In force | From the USPTO record | |
| US 8,201,448 | Gravity gradiometer with torsion flexure pivots In force · From the USPTO record | In force | From the USPTO record | |
| US 9,038,457 | Quadrupole responder for OQR-type gravity gradiometer In force · From the USPTO record | In force | From the USPTO record | |
| US 8,909,496 | Gravity gradiometer and methods for measuring gravity gradients In force · From the USPTO record | In force | From the USPTO record | |
| US 9,121,447 | Single axis rotational gas bearing with feed-through In force · From the USPTO record | In force | From the USPTO record | |
| US 9,640,310 | Cryogenic coil assembly and method of manufacturing same In force · From the USPTO record | In force | From the USPTO record | |
| US 9,529,059 | Dual squid measurement device In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 7: 4 patents in force now held by others · 1 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
Every application published under this name has become a patent.