US2565753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming plastic buttonholes
Assignee: Individual
•
Filing: 1947-01-06
•
Granted: 1951-08-28
•
Expires: 1967-01-06
Abstract
No abstract record available.
Inventors
- 👤 Botwinick Israel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:44
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/0082; A; A41; A41H; A41H25/00; B26; B26F; B26F3/00; B26F3/06; B29C63/0026; B29C63/0034; B29L; B29L2031/00; B29L2031/737; B29L2031/7374; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034; Y10T156/12; Y10T156/1304; Y10T156/1309; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45759
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |