US2736272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
elsner
Assignee: —
•
Filing: —
•
Granted: 1956-02-28
•
Expires: 1973-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/08; Y; Y10; Y10T; Y10T24/00; Y10T24/47; Y10T24/4773
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2052914A
Cited
US2268394A
Cited
US2354861A
Cited
US2429190A
Cited
US2448817A
Cited
US2532743A
Cited
US2585304A
Cited
US2565204A
Cited
US2614871A
Cited
US2688289A
Cited
US2688504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |