US2549569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control device
Assignee: Detroit Macoid Corp
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Filing: 1948-04-26
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Granted: 1951-04-17
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Expires: 1968-04-26
Abstract
No abstract record available.
Inventors
- 👤 Stephen D Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:40
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; B; B29; B29C; B29C48/00; B29C48/15; B29C48/25; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/834; G05D23/1919; B29C48/03
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) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |