US2937665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe covering
Assignee: Trenton Corp
•
Filing: 1955-10-17
•
Granted: 1960-05-24
•
Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Kennedy Ted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:01
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/10; F16L58/00; F16L58/02; F16L58/16; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/1359
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1867984A
Cited
US1996951A
Cited
US2291838A
Cited
US2403077A
Cited
US2551591A
Cited
US2566514A
Cited
US2601336A
Cited
US2713551A
Cited
US2713383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |