US2962052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe and method of making same
Assignee: Burns and Russell Co
•
Filing: 1956-05-09
•
Granted: 1960-11-29
•
Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 John A Sergovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:32
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/22; B05D7/24; F; F16; F16L; F16L58/00; F16L58/02; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2160372A
Cited
GB521902A
Cited
US2445764A
Cited
US2409633A
Cited
US2656857A
Cited
US2679493A
Cited
US2641586A
Cited
US2623030A
Cited
US2667465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |