US2853758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-proof closure
Assignee: Individual
•
Filing: 1956-01-26
•
Granted: 1958-09-30
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Sam B Topf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:20
CPC Classifications
A; A41; A41F; A41F1/00; A44; A44B; A44B19/00; A44B19/24; A44B19/32; E; E04; E04H; E04H15/00; E04H15/32; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2514; Y10T24/2516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1277208A
Cited
GB557418A
Cited
US2325332A
Cited
US2422249A
Cited
US2454214A
Cited
US2477563A
Cited
US2551245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |