US2841801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambulatory cot sheet protector
Assignee: Individual
•
Filing: 1955-08-25
•
Granted: 1958-07-08
•
Expires: 1975-08-25
Abstract
No abstract record available.
Inventors
- 👤 Richard C Crown
- 👤 John K Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:13
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/0502; A61G1/00; A61G1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US156772A
Cited
US712203A
Cited
US738674A
Cited
US942606A
Cited
GB300072A
Cited
US1877610A
Cited
US1939568A
Cited
US1967422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |