Patent US1131832A successfully refreshed from Google Patents.
US1131832A
Expired / Lapsed
US
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Apparatus for operating bulkhead-doors.
Assignee: Individual
•
Filing: 1914-07-21
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Granted: 1915-03-16
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Expires: 1934-07-21
Abstract
No abstract record available.
Inventors
- 👤 Henry M Gleason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:13
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/924; Y10S388/927
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) | 1918-03-15 | 1918-09-14 | 1919-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-03-15 | 1922-09-14 | 1923-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-03-15 | 1926-09-14 | 1927-03-16 | $7700.00 | Window Closed / Lapsed |