US2250447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door fastener
Assignee: W H MINER Inc
•
Filing: 1940-05-31
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Granted: 1941-07-29
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Expires: 1960-05-31
Abstract
No abstract record available.
Inventors
- 👤 William M Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/0042; E05B65/0053; Y; Y10; Y10S; Y10S292/00; Y10S292/65; Y10T; Y10T292/00; Y10T292/68; Y10T292/696; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389
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) | 1944-07-28 | 1945-01-27 | 1945-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-28 | 1949-01-27 | 1949-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-28 | 1953-01-27 | 1953-07-29 | $7700.00 | Window Closed / Lapsed |