US2885007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring device
Assignee: Individual
•
Filing: 1954-10-13
•
Granted: 1959-05-05
•
Expires: 1974-10-13
Abstract
No abstract record available.
Inventors
- 👤 Temple P Hoffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:29
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1839310A
Cited
US1898261A
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US2153812A
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US2297044A
Cited
US2537066A
Cited
US2508285A
Cited
US2614633A
Cited
US2606616A
Cited
US2667928A
Cited
US2566323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |