US2703370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric compressor or pump motor with rolling rotor
Assignee: Individual
•
Filing: 1952-07-02
•
Granted: 1955-03-01
•
Expires: 1972-07-02
Abstract
No abstract record available.
Inventors
- 👤 Steensen Sverre Johan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:50
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0057; F04C15/0061; F04C15/0069; H; H02; H02K; H02K41/00; H02K41/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |