System Development Inc.
Records under this name other than the patents System Development Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 1 patents it holds.
Back to System Development Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,810,820 | Active Printing System and Method for Printing Based on Image Size Lapsed on the fee record Ended Aug 19, 2026 · High confidence | Lapsed on the fee record | Ended Aug 19, 2026 | High confidence |
| US 8,363,237 | Active Printing System and Method for Printing Based on Image Size Lapsed on the fee record Ended Jan 29, 2025 · High confidence | Lapsed on the fee record | Ended Jan 29, 2025 | High confidence |
| US 9,156,290 | System and method for printing on continuous feed media Lapsed on the fee record Ended Oct 13, 2023 · From the USPTO record | Lapsed on the fee record | Ended Oct 13, 2023 | From the USPTO record |
| US 4,019,201 | Method and apparatus for scrambling and unscrambling communication signals Formerly held Term ended Term ended no later than Apr 19, 1997 · Low confidence | Term ended | Term ended no later than Apr 19, 1997 | Low confidence |
| US 4,024,576 | Method and apparatus for scrambling and unscrambling communication signals Formerly held Term ended Term ended no later than May 17, 1997 · Low confidence | Term ended | Term ended no later than May 17, 1997 | Low confidence |
| US 4,045,814 | Method and apparatus for scrambling and unscrambling communication signals Term ended Term ended no later than Aug 30, 1997 · Low confidence | Term ended | Term ended no later than Aug 30, 1997 | Low confidence |
| US 4,054,255 | Microwave ice detector Term ended Term ended no later than Oct 18, 1997 · Low confidence | Term ended | Term ended no later than Oct 18, 1997 | Low confidence |
| US 4,060,212 | Deicing apparatus and method Term ended Term ended no later than Nov 29, 1997 · Low confidence | Term ended | Term ended no later than Nov 29, 1997 | Low confidence |
| US 4,068,298 | Information storage and retrieval system Formerly held Term ended Term ended no later than Jan 10, 1998 · Low confidence | Term ended | Term ended no later than Jan 10, 1998 | Low confidence |
| US 4,134,077 | Amplifier circuit operable over a wide temperature range Term ended Term ended no later than Jan 9, 1999 · Low confidence | Term ended | Term ended no later than Jan 9, 1999 | Low confidence |