Patent US2993736A successfully refreshed from Google Patents.
US2993736A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1957-11-12
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Granted: 1961-07-25
•
Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Lyon George Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:28
CPC Classifications
B; B60; B60B; B60B7/00; B60B7/06; B60B7/10; B60B7/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732261A
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US2137416A
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US2239367A
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US2359248A
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US2351655A
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US2526026A
Cited
US2584143A
Cited
US2621978A
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US2714041A
Cited
US2757975A
Cited
US2749186A
Cited
US2937426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |