Patent US2923652A successfully refreshed from Google Patents.
US2923652A
Expired / Lapsed
US
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Method of manufacturing racket frames
Assignee: Individual
•
Filing: 1956-04-05
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Granted: 1960-02-02
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Expires: 1976-04-05
Abstract
No abstract record available.
Inventors
- 👤 Oka Tokichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:07
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/10; A63B60/00; A63B2209/00; A63B2209/02; A63B2209/023; Y; Y10; Y10S; Y10S273/00; Y10S273/07; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2285031A
Cited
US2626804A
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US2573361A
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US2541297A
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US2602766A
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US2594693A
Cited
US2695178A
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US2749643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |