US2887733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating duct system for mobile houses
Assignee: Coleman Co Inc
•
Filing: 1954-07-27
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Granted: 1959-05-26
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Expires: 1974-07-27
Abstract
No abstract record available.
Inventors
- 👤 Jack W Kice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:35
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/143; B; B60; B60H; B60H1/00; B60H1/00357; B60H1/00364; B60H1/00507; B60H1/00557; B60H1/00564; B60H1/24; B60H1/241; B60H1/246; F24; F24F; F24F13/00; F24F13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US135044A
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US1223801A
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FR529107A
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US2128549A
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US2313345A
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US2616529A
Cited
CH255645A
Cited
US2595613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |