Patent US2275177A successfully refreshed from Google Patents.
US2275177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination bonding and heat treating
Assignee: Morse Chain Co
•
Filing: 1939-03-29
•
Granted: 1942-03-03
•
Expires: 1959-03-29
Abstract
No abstract record available.
Inventors
- 👤 Walter B Crans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/02; F02N15/022; F02N15/023; B; B23; B23K; B23K31/00; B23K31/02; C; C23; C23C; C23C8/00; Y; Y10; Y10S; Y10S220/00; Y10S220/29; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49465; Y10T74/00; Y10T74/13; Y10T74/131
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) | 1945-03-02 | 1945-09-01 | 1946-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-02 | 1949-09-01 | 1950-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-02 | 1953-09-01 | 1954-03-03 | $7700.00 | Window Closed / Lapsed |