US3043361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe wall supporting mechanism
Assignee: Individual
•
Filing: 1959-02-24
•
Granted: 1962-07-10
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Kelso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:52
CPC Classifications
B; B21; B21D; B21D9/00; B21D9/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733502A
Cited
US1105914A
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US1654697A
Cited
US2356603A
Cited
US2347593A
Cited
US2380344A
Cited
US2371393A
Cited
US2401052A
Cited
US2594000A
Cited
US2638069A
Cited
US2687763A
Cited
GB768753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |