US2627436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorknob spindle securing means
Assignee: HOLLYMADE HARDWARE Manufacturing Co
•
Filing: 1949-05-02
•
Granted: 1953-02-03
•
Expires: 1969-05-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Cerf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:30
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; Y; Y10; Y10T; Y10T292/00; Y10T292/85; Y10T292/865; Y10T292/93; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/542; Y10T70/5434; Y10T70/5487
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US769768A
Cited
US1876079A
Cited
US1991031A
Cited
US2138856A
Cited
US1994134A
Cited
US2076125A
Cited
US2046342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-03 | 1956-08-04 | 1957-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-03 | 1960-08-04 | 1961-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-03 | 1964-08-04 | 1965-02-03 | $7700.00 | Window Closed / Lapsed |