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US3534408A
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US
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Diving hat neck seal and suit attachment
Assignee: DIVING EQUIPMENT AND SUPPLY CO Inc
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Filing: 1968-01-17
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Granted: 1970-10-20
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Expires: 1988-01-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Fifield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:50
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/04; B63C11/06; B63C2011/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US484885A
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US669011A
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US815998A
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US2130933A
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US2414845A
Cited
DE1159802B
Cited
US3323846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |