Patent US3064449A successfully refreshed from Google Patents.
US3064449A
Expired / Lapsed
US
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Refrigerant compressor
Assignee: Task Corp
•
Filing: 1960-11-28
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Granted: 1962-11-20
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Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Richard N Rigney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:15
CPC Classifications
F; F25; F25B; F25B1/00; F25B1/04; F25B31/00; F25B31/02; F25B31/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1899378A
Cited
US1870228A
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US2689622A
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US2770106A
Cited
US2813404A
Cited
US2921446A
Cited
US2891391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |