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US2992834A
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Assignee: Individual
•
Filing: 1958-01-13
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Granted: 1961-07-18
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Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Tidwell
- 👤 John A Nodson
- 👤 Donald E Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:00
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/04; B60; B60T; B60T11/00; B60T11/04; B62B1/00; B62B1/18; B62B1/20; B62B5/0438; B62B2202/00; B62B2202/42; B62B5/0485
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR379103A
Cited
US1616329A
Cited
GB580222A
Cited
US2384235A
Cited
US2465112A
Cited
US2624588A
Cited
US2716031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |