US1326871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic-fluid turbine
Assignee: —
•
Filing: —
•
Granted: 1919-12-30
•
Expires: 1936-12-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:15
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/088; Y; Y10; Y10T; Y10T403/00; Y10T403/59; Y10T403/598; Y10T403/70; Y10T403/7018; Y10T403/7021
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) | 1922-12-29 | 1923-06-30 | 1923-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-12-29 | 1927-06-30 | 1927-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-12-29 | 1931-06-30 | 1931-12-30 | $7700.00 | Window Closed / Lapsed |