US3400885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston-type compressor particularly for small refrigerating units
Assignee: Danfoss AS
•
Filing: 1966-10-10
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Granted: 1968-09-10
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Arne F Enemark
- 👤 Knud V Valbjorn
- 👤 Bendt W Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:52
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/1073; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7779
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |