US3105537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bending pipe
Assignee: CRUTCHER ROLFS CUMMINGS Inc
•
Filing: 1960-12-08
•
Granted: 1963-10-01
•
Expires: 1980-12-08
Abstract
No abstract record available.
Inventors
- 👤 Robert D Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:13
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/033; B21D26/045; B21D9/00; B21D9/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US203842A
Cited
US2347593A
Cited
US2861530A
Cited
US2963778A
Cited
US2907102A
Cited
US2837810A
Cited
US2970633A
Cited
US3014518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |