US2807097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heating and stretching fabrics
Assignee: Aetna Standard Engineering Co
•
Filing: 1955-09-28
•
Granted: 1957-09-24
•
Expires: 1975-09-28
Abstract
No abstract record available.
Inventors
- 👤 Gilbert V Kullgren
- 👤 Dwight M Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:25
CPC Classifications
D; D06; D06C; D06C3/00; D06C2700/00; D06C2700/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1228931A
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US2204801A
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US2268987A
Cited
US2297314A
Cited
US2321907A
Cited
US2629162A
Cited
US2666994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |