Patent US3526942A successfully refreshed from Google Patents.
US3526942A
Expired / Lapsed
US
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Motor driven rotary compressors
Assignee: Toshiba Corp
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Filing: 1968-06-19
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Granted: 1970-09-08
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Expires: 1988-06-19
Abstract
No abstract record available.
Inventors
- 👤 Tuneo Monden
- 👤 Makoto Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:21
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/026; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49236; Y10T29/49245; Y10T29/49826; Y10T29/49893; Y10T29/49945
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |