Patent US3543377A successfully refreshed from Google Patents.
US3543377A
Expired / Lapsed
US
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Vibratory towing head
Assignee: Individual
•
Filing: 1968-12-30
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Granted: 1970-12-01
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Expires: 1988-12-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond Muir Bremner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:49
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/26; F16L55/28; F16L55/30; F16L55/38; B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/043; B08B9/0436; B29; B29C; B29C63/00; B29C63/26; F16L2101/00; F16L2101/10; F16L2101/12; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53652
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |