US2620636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system for automobiles
Assignee: Individual
•
Filing: 1950-01-03
•
Granted: 1952-12-09
•
Expires: 1970-01-03
Abstract
No abstract record available.
Inventors
- 👤 Robert E Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:55
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1943317A
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US1959681A
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US2158367A
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US2151987A
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US2227257A
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US2091594A
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US2141781A
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US2251376A
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US2213337A
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US2157186A
Cited
US2185034A
Cited
US2382667A
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 |