US2937386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress handle and ventilator assembly
Assignee: Flexible Products Co
•
Filing: 1958-01-21
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Granted: 1960-05-24
•
Expires: 1978-01-21
Abstract
No abstract record available.
Inventors
- 👤 Clarence H Perretz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:20
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/04; A47C21/042; A47C21/046; A47C31/00; A47C31/08; Y; Y10; Y10S; Y10S55/00; Y10S55/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR346147A
Cited
US2131212A
Cited
US2246831A
Cited
US2497827A
Cited
US2500336A
Cited
US2636640A
Cited
GB700656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |