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US991547A
Expired / Lapsed
US
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Duplex force-feed lubricator.
Assignee: Individual
•
Filing: 1911-03-14
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Granted: 1911-05-09
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Expires: 1931-03-14
Abstract
No abstract record available.
Inventors
- 👤 Albert E Schad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:47
CPC Classifications
F; F16; F16N; F16N11/00
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) | 1914-05-08 | 1914-11-07 | 1915-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-05-08 | 1918-11-07 | 1919-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-05-08 | 1922-11-07 | 1923-05-09 | $7700.00 | Window Closed / Lapsed |