US2504986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-in spring fastener
Assignee: Prestole Corp
•
Filing: 1948-03-17
•
Granted: 1950-04-25
•
Expires: 1968-03-17
Abstract
No abstract record available.
Inventors
- 👤 Harold W Kost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:37
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; Y; Y10; Y10S; Y10S220/00; Y10S220/03; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3459; Y10T24/44; Y10T24/44034; Y10T24/44043; Y10T24/4406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1040572A
Cited
US2100017A
Cited
US2166889A
Cited
US2184249A
Cited
US2433343A
Cited
US2451591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |