US2738561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener device
Assignee: Individual
•
Filing: 1952-04-02
•
Granted: 1956-03-20
•
Expires: 1972-04-02
Abstract
No abstract record available.
Inventors
- 👤 Sanford S Trilling
- 👤 Noah H Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:56
CPC Classifications
A; A44; A44B; A44B11/00; A44B11/20; A44B11/22; A44B11/223; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/43; Y10S24/47; Y10S24/48; Y10T; Y10T24/00; Y10T24/31; Y10T24/318; Y10T24/40; Y10T24/4058; Y10T24/4065; Y10T24/45; Y10T24/45005; Y10T24/45037; Y10T24/45052; Y10T24/45225; Y10T24/45602; Y10T24/45623; Y10T24/45639
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |