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US2658690A
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Assignee: GEORGE W FERRELL
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Filing: 1952-06-30
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Granted: 1953-11-10
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Expires: 1972-06-30
Abstract
No abstract record available.
Inventors
- 👤 Hill William Tippett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:20
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/16; A47K10/18; A47K10/22; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10T; Y10T24/00; Y10T24/45; Y10T292/00; Y10T292/08; Y10T292/0894; Y10T292/0895; Y10T292/0902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320628A
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US960363A
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US1196617A
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US1509002A
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US2372949A
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US2582036A
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US2603426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |