US2698130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump or expansion engine
Assignee: Novo Terapeutisk Laboratorium AS
•
Filing: 1949-03-02
•
Granted: 1954-12-28
•
Expires: 1969-03-02
Abstract
No abstract record available.
Inventors
- 👤 Mossin Kai Borge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:17
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/36; F04C15/00; F04C15/06; F04C18/00; F04C18/30; F04C18/36; F04C18/08; F04C18/12; F04C18/14; F04C18/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE22818E
Cited
US165805A
Cited
GB189902866A
Cited
US730679A
Cited
US1037455A
Cited
US1098256A
Cited
FR458408A
Cited
US1432081A
Cited
FR604302A
Cited
US1746885A
Cited
US1771863A
Cited
FR653903A
Cited
US1953695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |