US2644224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toolholder
Assignee: Old Carco LLC
•
Filing: 1950-05-16
•
Granted: 1953-07-07
•
Expires: 1970-05-16
Abstract
No abstract record available.
Inventors
- 👤 Adrian E Chilcott
- 👤 William F Grier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:30
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/16; B23B27/1685; B23B27/1688; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2212; Y10T407/2222; Y10T407/2238; Y10T407/224; Y10T407/2272; Y10T407/2282; Y10T407/2284
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US945675A
Cited
US1056089A
Cited
CH76590A
Cited
GB318033A
Cited
GB398916A
Cited
US1970016A
Cited
GB545568A
Cited
US2378094A
Cited
US2374625A
Cited
US2382911A
Cited
US2584505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |