US2248639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary piston machine
Assignee: Individual
•
Filing: 1937-09-22
•
Granted: 1941-07-08
•
Expires: 1957-09-22
Abstract
No abstract record available.
Inventors
- 👤 Miksits Reinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:00
CPC Classifications
F; F01; F01C; F01C20/00; F01C20/10; F01C20/12; F01B; F01B1/00; F01B1/06; F01B1/0675; F01B1/0696; F01B13/00; F01B13/04; F01B13/06; F01B13/068; F01C11/00; F01C11/002; F01C11/004; F02; F02B; F02B45/00; F02B45/02; F02B57/00; F02B57/08; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1816; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1944-07-07 | 1945-01-06 | 1945-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-07 | 1949-01-06 | 1949-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-07 | 1953-01-06 | 1953-07-08 | $7700.00 | Window Closed / Lapsed |