US2978801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for assembling open springretaining rings
Assignee: Waldes Kohinoor Inc
•
Filing: 1955-02-02
•
Granted: 1961-04-11
•
Expires: 1975-02-02
Abstract
No abstract record available.
Inventors
- 👤 Erdmann Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:09
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T29/53; Y10T29/53478; Y10T29/53487; Y10T29/53613; Y10T29/5363
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1073280A
Cited
US1596678A
Cited
US2172847A
Cited
US2215008A
Cited
US2312502A
Cited
US2480037A
Cited
US2483379A
Cited
US2650722A
Cited
US2781515A
Cited
US2712398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |