Patent US2180929A successfully refreshed from Google Patents.
US2180929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knob fastening installation and knob fastener
Assignee: United Carr Fastener Corp
•
Filing: 1937-09-04
•
Granted: 1939-11-21
•
Expires: 1957-09-04
Abstract
No abstract record available.
Inventors
- 👤 Howard J Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:13
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/12; E; E05; E05B; E05B3/00; E05B2003/006; F; F16; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10S; Y10S411/00; Y10S411/918; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3428; Y10T24/3429; Y10T292/00; Y10T292/85; Y10T292/854
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-11-20 | 1943-05-22 | 1943-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-11-20 | 1947-05-22 | 1947-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-11-20 | 1951-05-22 | 1951-11-21 | $7700.00 | Window Closed / Lapsed |