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US2925918A
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Assignee: Individual
•
Filing: 1956-04-05
•
Granted: 1960-02-23
•
Expires: 1976-04-05
Abstract
No abstract record available.
Inventors
- 👤 Charles W Attwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:39
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1251254A
Cited
US1479987A
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US1803016A
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US1805378A
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US2283908A
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US2264558A
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US2520222A
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US2547574A
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US2644591A
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US2643170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |