US2835308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube expanding tool having rollers confined in cage slots and inclined within range of one-fourth to two-thirds of one degree
Assignee: Individual
•
Filing: 1953-07-28
•
Granted: 1958-05-20
•
Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Walter E Stary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:10
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/08; B21D39/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB190119788A
Cited
FR377465A
Cited
US941190A
Cited
US1516704A
Cited
US1514712A
Cited
US1793624A
Cited
DE525549C
Cited
US1680922A
Cited
US1798442A
Cited
US1873568A
Cited
DE602215C
Cited
US2041915A
Cited
US2045787A
Cited
US2085447A
Cited
US2219784A
Cited
US2373097A
Cited
US2375235A
Cited
US2448512A
Cited
US2649889A
Cited
US2546756A
Cited
US2690205A
Cited
US2736950A
Cited
US2630853A
Cited
US2737996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |