US2620635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system and control
Assignee: ERWIN W MAUTNER
•
Filing: 1950-09-09
•
Granted: 1952-12-09
•
Expires: 1970-09-09
Abstract
No abstract record available.
Inventors
- 👤 Henry M Mautner
- 👤 Alex J Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:52
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/72; B29C35/00; B29C35/007; F; F28; F28F; F28F27/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2166158A
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US2264385A
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US2373201A
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US2357706A
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US2401728A
Cited
US2460831A
Cited
US2536506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |