US2881630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer mechanism
Assignee: Librascope Inc
•
Filing: 1956-10-09
•
Granted: 1959-04-14
•
Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Willard J Opocensky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:13
CPC Classifications
F; F16; F16H; F16H27/00; F16H27/04; F16H27/08; G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/101; G06M1/14; G06M1/16; G06M1/163; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/1987; Y10T74/19874
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1243374A
Cited
US1216759A
Cited
US1370540A
Cited
US1671553A
Cited
US1758206A
Cited
US2483359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |