US2825962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for indenting tubes
Assignee: American Forging and Socket Co
•
Filing: 1954-07-26
•
Granted: 1958-03-11
•
Expires: 1974-07-26
Abstract
No abstract record available.
Inventors
- 👤 Hollis P Brown
- 👤 Walter R Rikli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:05
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US743192A
Cited
US1375334A
Cited
US1872319A
Cited
US1982369A
Cited
US1962543A
Cited
US2199366A
Cited
US2541361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |