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US2667320A
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US
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Assignee: Individual
•
Filing: 1952-11-01
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Granted: 1954-01-26
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Expires: 1972-11-01
Abstract
No abstract record available.
Inventors
- 👤 Henry H Whitley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:14
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/14; B65F1/1468; B65F1/16; B65F1/1623; B65F1/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US498920A
Cited
US641594A
Cited
US1199531A
Cited
US1544356A
Cited
US2078119A
Cited
US2466416A
Cited
US2634933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |