US3421600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial lubricating system
Assignee: Master Pneumatic Detroit Inc
•
Filing: 1966-03-14
•
Granted: 1969-01-14
•
Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Quin R Gleason
- 👤 George E Thrasher Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:12
CPC Classifications
F; F16; F16N; F16N13/00; F16N13/02; F16N13/06; F16N13/16; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1787741A
Cited
US2022620A
Cited
US2837174A
Cited
US2792911A
Cited
US3264949A
Cited
US3317003A
Cited
US3298460A
Cited
US3317002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |