US2231286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming and attaching slide fastener elements
Assignee: Individual
•
Filing: 1937-07-17
•
Granted: 1941-02-11
•
Expires: 1957-07-17
Abstract
No abstract record available.
Inventors
- 👤 Firing Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:48
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/46; B21D53/50; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49782; Y10T29/49785; Y10T29/51; Y10T29/5101; Y10T29/5116; Y10T29/5117; Y10T29/5183; Y10T29/53; Y10T29/53291; Y10T29/53304; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1944-02-11 | 1944-08-12 | 1945-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-11 | 1948-08-12 | 1949-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-11 | 1952-08-12 | 1953-02-11 | $7700.00 | Window Closed / Lapsed |