US2922583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe lining machine
Assignee: Perkins Pipe Linings Inc
•
Filing: 1959-04-06
•
Granted: 1960-01-26
•
Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
B; B28; B28B; B28B19/00; B28B19/0023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262647A
Cited
US2303088A
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US2287448A
Cited
US2607991A
Cited
US2758352A
Cited
US2839026A
Cited
US2865322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |