US3513476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary compressors
Assignee: Toshiba Corp
•
Filing: 1968-06-19
•
Granted: 1970-05-19
•
Expires: 1988-06-19
Abstract
No abstract record available.
Inventors
- 👤 Tuneo Monden
- 👤 Masao Ozu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:25
CPC Classifications
F; F04; F04C; F04C29/00; F04C29/02; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US902762A
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US1280306A
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US1692473A
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US1931198A
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US2324903A
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US2251784A
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US3056542A
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US3015222A
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US3304879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |