Patent US2030630A successfully refreshed from Google Patents.
US2030630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorlatch
Assignee: Individual
•
Filing: 1935-05-06
•
Granted: 1936-02-11
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Expires: 1955-05-06
Abstract
No abstract record available.
Inventors
- 👤 William A Gram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:23
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; E05C3/16; E05C3/22; E05C3/24; Y; Y10; Y10S; Y10S292/00; Y10S292/56; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876; Y10T292/0883; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1075; Y10T292/1083; Y10T292/1092; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5496; Y10T70/80; Y10T70/8892
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) | 1939-02-10 | 1939-08-12 | 1940-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-10 | 1943-08-12 | 1944-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-10 | 1947-08-12 | 1948-02-11 | $7700.00 | Window Closed / Lapsed |