Patent US3487353A successfully refreshed from Google Patents.
US3487353A
Expired / Lapsed
US
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Underwater separable connector
Assignee: MASSA DONALD P COHASSET
•
Filing: 1967-08-14
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Granted: 1969-12-30
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Expires: 1987-08-14
Abstract
No abstract record available.
Inventors
- 👤 Frank Massa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:07
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/523; Y; Y10; Y10S; Y10S439/00; Y10S439/933; Y10S439/936
Claims Analysis
Total Claims: 0
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US3093432A
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US3155450A
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US3212049A
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US3375481A
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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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |