US2963113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor lubrication system
Assignee: Carrier Corp
•
Filing: 1957-10-03
•
Granted: 1960-12-06
•
Expires: 1977-10-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Ayling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:40
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/023; F25B31/002; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE73776C
Cited
US946133A
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US2038131A
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GB568991A
Cited
US2725118A
Cited
US2752088A
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US2743627A
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GB768058A
Cited
DK65377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |