US3483854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed gas expander cooling apparatus
Assignee: Studebaker Worthington Inc
•
Filing: 1968-05-24
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Granted: 1969-12-16
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Expires: 1988-05-24
Abstract
No abstract record available.
Inventors
- 👤 Nicholas A Foran
- 👤 James R Collingwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:11
CPC Classifications
F; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0437; F02B29/0443; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2392783A
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US2703561A
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US2703560A
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US3229456A
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US3209551A
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US3143103A
Cited
US3306032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |