US3068707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil sealed compressor
Assignee: Ingersoll Rand Co
•
Filing: 1960-11-29
•
Granted: 1962-12-18
•
Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 Wallace K Newcomb
- 👤 Warming Troels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:56
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/04; F04B39/041; Y; Y10; Y10T; Y10T403/00; Y10T403/29; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588; Y10T74/20594
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367744A
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US679343A
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US679898A
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US1071299A
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US1382081A
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US1430581A
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US2228849A
Cited
US2725578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |