Patent US1073370A successfully refreshed from Google Patents.
US1073370A
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Diving apparatus.
Assignee: Draeger-Werk Heinr & Bernh Draeger
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Filing: 1912-08-22
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Granted: 1913-09-16
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Expires: 1932-08-22
Abstract
No abstract record available.
Inventors
- 👤 Hermann Stelzner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:53
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; F; F16; F16K; F16K15/00; F16K15/18; F16K15/182; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4463; Y10T137/4643; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1916-09-15 | 1917-03-17 | 1917-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-09-15 | 1921-03-17 | 1921-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-09-15 | 1925-03-17 | 1925-09-16 | $7700.00 | Window Closed / Lapsed |