Patent US2942644A successfully refreshed from Google Patents.
US2942644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube bending apparatus
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1955-09-21
•
Granted: 1960-06-28
•
Expires: 1975-09-21
Abstract
No abstract record available.
Inventors
- 👤 Beranek Rudolph Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:42
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02; B21D7/024
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US165804A
Cited
US2636537A
Cited
US690023A
Cited
US1141166A
Cited
US1379858A
Cited
US1263301A
Cited
US1456598A
Cited
FR650680A
Cited
GB415206A
Cited
US2482617A
Cited
US2414387A
Cited
FR1006656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |