Patent US2959876A successfully refreshed from Google Patents.
US2959876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grader
Assignee: Individual
•
Filing: 1956-07-30
•
Granted: 1960-11-15
•
Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 Le Grand H Lull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:39
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7636; E02F3/764
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US924966A
Cited
US1255188A
Cited
US1460930A
Cited
US2016394A
Cited
US1844058A
Cited
US1921221A
Cited
US2065397A
Cited
US2108541A
Cited
US2136614A
Cited
US2238389A
Cited
US2321833A
Cited
US2678508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |