US59529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in regulating the flow of gases in apparatus for diving
Assignee: —
•
Filing: —
•
Granted: 1866-11-06
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Expires: 1883-11-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:15
CPC Classifications
A; A62; A62B; A62B7/00; A62B7/14; F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/064; F16K15/066; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/7904; Y10T137/7922
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) | 1869-11-05 | 1870-05-07 | 1870-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1873-11-05 | 1874-05-07 | 1874-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1877-11-05 | 1878-05-07 | 1878-11-06 | $7700.00 | Window Closed / Lapsed |