US2982977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress handles
Assignee: Individual
•
Filing: 1958-10-21
•
Granted: 1961-05-09
•
Expires: 1978-10-21
Abstract
No abstract record available.
Inventors
- 👤 William F Caster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:27
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/08; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/31; Y10S24/32; Y10T; Y10T24/00; Y10T24/23; Y10T24/45; Y10T24/45005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2359193A
Cited
US2157251A
Cited
US2239798A
Cited
US2236130A
Cited
US2703415A
Cited
US2860353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |