US2966703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a composite tube structure
Assignee: Watts Electric and Manufacturing Co
•
Filing: 1958-09-15
•
Granted: 1961-01-03
•
Expires: 1978-09-15
Abstract
No abstract record available.
Inventors
- 👤 Jack B Harman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:24
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/20; B29C; B29C41/00; B29C41/02; B29C41/14; B29L; B29L2023/00; B29L2023/20; Y; Y10; Y10S; Y10S264/00; Y10S264/37; Y10S425/00; Y10S425/014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |