Patent US2644508A successfully refreshed from Google Patents.
US2644508A
Expired / Lapsed
US
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Resilient seating surface for chairs
Assignee: Individual
•
Filing: 1951-06-11
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Granted: 1953-07-07
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Expires: 1971-06-11
Abstract
No abstract record available.
Inventors
- 👤 Bruno R Weill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:27
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/282; A47C7/32; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US125783A
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US1430248A
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US1662216A
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US1853579A
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DE643256C
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US2231800A
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FR850372A
Cited
GB542689A
Cited
US2545513A
Cited
US2581888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |