US3451615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor lubricating system
Assignee: Tecumseh Products Co
•
Filing: 1967-07-12
•
Granted: 1969-06-24
•
Expires: 1987-07-12
Abstract
No abstract record available.
Inventors
- 👤 Paul B Hover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:36
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/002; F04; F04B; F04B39/00; F04B39/02; F04B39/0223; F04B39/023; F04B39/0238; F04B39/0246; F16; F16C; F16C3/00; F16C3/04; F16C3/06; F16C3/14; F16N; F16N7/00; F16N7/36; F16N7/366; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2125645A
Cited
US2809872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |