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Patent US2855481A successfully refreshed from Google Patents.
US2855481A
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Time delay apparatus
Assignee: Elastic Stop Nut Corp
•
Filing: 1954-10-14
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Granted: 1958-10-07
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Expires: 1974-10-14
Abstract
No abstract record available.
Inventors
- 👤 Lindahl Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:37
CPC Classifications
G; G04; G04F; G04F1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE16551E
Cited
US2158346A
Cited
US2237705A
Cited
US2489381A
Cited
US2627919A
Cited
US2630886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |