US2067735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking fastener structure
Assignee: Waldes Kohinoor Inc
•
Filing: 1932-12-01
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Granted: 1937-01-12
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Expires: 1952-12-01
Abstract
No abstract record available.
Inventors
- 👤 Silberman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:00
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/40; A44B19/403; A44B19/02; A44B19/04; A44B19/06; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2539; Y10T24/2557
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) | 1940-01-12 | 1940-07-13 | 1941-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-12 | 1944-07-13 | 1945-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-12 | 1948-07-13 | 1949-01-12 | $7700.00 | Window Closed / Lapsed |