US1129878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating device for motor-driven compressors.
Assignee: Ingersoll Rand Co
•
Filing: 1913-03-11
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Granted: 1915-03-02
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Expires: 1933-03-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Lucker
- 👤 Allan O Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
F; F04; F04B; F04B49/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617; Y10T137/8593; Y10T137/86493; Y10T137/86501
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) | 1918-03-01 | 1918-08-31 | 1919-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-03-01 | 1922-08-31 | 1923-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-03-01 | 1926-08-31 | 1927-03-02 | $7700.00 | Window Closed / Lapsed |