US3044431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal pipe clamp
Assignee: CRUTCHER ROLFS CUMMINGS Inc
•
Filing: 1960-05-16
•
Granted: 1962-07-17
•
Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/04; B23K37/053; B23K37/0531; F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2430273A
Cited
US2594000A
Cited
US2638069A
Cited
US2640561A
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US2804836A
Cited
US2830551A
Cited
US2936020A
Cited
US2906226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |