US1639870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure fastener
Assignee: Individual
•
Filing: 1926-10-30
•
Granted: 1927-08-23
•
Expires: 1946-10-30
Abstract
No abstract record available.
Inventors
- 👤 Martin J Valsvig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:31
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/02; B65D45/16; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0825; Y10T292/0826; Y10T292/0833; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1086; Y10T292/20; Y10T292/225; Y10T292/34
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) | 1930-08-22 | 1931-02-21 | 1931-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-22 | 1935-02-21 | 1935-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-22 | 1939-02-21 | 1939-08-23 | $7700.00 | Window Closed / Lapsed |