Patent US1996043A successfully refreshed from Google Patents.
US1996043A
Expired / Lapsed
US
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Method of producing insulating material
Assignee: Wilson and Co Inc
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Filing: 1933-03-15
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Granted: 1935-03-26
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Expires: 1953-03-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Gaarder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:58
CPC Classifications
C; C08; C08L; C08L89/00; C08L89/04; C08L89/06; C08J; C08J5/00; C08J5/04; C08J5/045; C08K; C08K3/00; C08K3/16; C08J2395/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-03-25 | 1938-09-24 | 1939-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-25 | 1942-09-24 | 1943-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-25 | 1946-09-24 | 1947-03-26 | $7700.00 | Window Closed / Lapsed |