US2267511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring fastener guard and sealing device
Assignee: Individual
•
Filing: 1941-02-11
•
Granted: 1941-12-23
•
Expires: 1961-02-11
Abstract
No abstract record available.
Inventors
- 👤 John H Van Uum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:07
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/12; F16B5/123; F16B5/125; F16B5/128; Y; Y10; Y10T; Y10T24/00; Y10T24/30; Y10T24/304; Y10T24/308; Y10T24/45; Y10T24/45005; Y10T24/45099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-12-22 | 1945-06-23 | 1945-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-22 | 1949-06-23 | 1949-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-22 | 1953-06-23 | 1953-12-23 | $7700.00 | Window Closed / Lapsed |