US2773533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substantially u-shaped, resilient locking device for use with recessed nut and bolt
Assignee: Individual
•
Filing: 1953-07-23
•
Granted: 1956-12-11
•
Expires: 1973-07-23
Abstract
No abstract record available.
Inventors
- 👤 Ohlsen Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:09
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/04; F16B39/06; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/926; Y10S411/927; Y10S411/945; Y10S411/946; Y10S411/948; Y10S411/955; Y10S411/974; Y10S411/984; Y10S411/985
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US374274A
Cited
US723395A
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US999632A
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US993918A
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US1070094A
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US1017770A
Cited
US1146101A
Cited
US1191955A
Cited
US1204548A
Cited
US1448178A
Cited
GB371254A
Cited
US2395234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |