Patent US2979022A successfully refreshed from Google Patents.
US2979022A
Expired / Lapsed
US
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Assignee: Admiral Corp
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Filing: 1957-12-16
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Granted: 1961-04-11
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Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Alf F Adel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:15
CPC Classifications
G; G10; G10K; G10K1/00; G10K1/06; G10K1/07; G10K1/072; Y; Y10; Y10S; Y10S116/00; Y10S116/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |