US2929055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encoders
Assignee: MARCHANT RES Inc
•
Filing: 1953-07-21
•
Granted: 1960-03-15
•
Expires: 1973-07-21
Abstract
No abstract record available.
Inventors
- 👤 Wahlstrom Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:24
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/124
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1849870A
Cited
GB314494A
Cited
US2416849A
Cited
US2420509A
Cited
US2494327A
Cited
US2480713A
Cited
US2496912A
Cited
US2539623A
Cited
US2546307A
Cited
US2568724A
Cited
US2520125A
Cited
US2669388A
Cited
US2634052A
Cited
US2585630A
Cited
US2680241A
Cited
US2616965A
Cited
US2619282A
Cited
US2769595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |