Patent US883888A successfully refreshed from Google Patents.
US883888A
Expired / Lapsed
US
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Air or gas compressor system.
Assignee: General Electric Co
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Filing: 1907-04-10
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Granted: 1908-04-07
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Expires: 1927-04-10
Abstract
No abstract record available.
Inventors
- 👤 Huldreich Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:09
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/04; F02; F02C; F02C3/00; F02C3/04; F02C3/06; F02C3/073
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) | 1911-04-07 | 1911-10-07 | 1912-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-04-07 | 1915-10-07 | 1916-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-04-07 | 1919-10-07 | 1920-04-07 | $7700.00 | Window Closed / Lapsed |