Patent US3037504A successfully refreshed from Google Patents.
US1336403A
Expired / Lapsed
US
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Composite insulating material
Assignee: CF Burgess Laboratories Inc
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Filing: 1919-06-02
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Granted: 1920-04-06
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Expires: 1939-06-02
Abstract
No abstract record available.
Inventors
- 👤 Howard F Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:22
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B2700/00; D06B2700/27; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034; Y10T428/00; Y10T428/23; Y10T428/237
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) | 1923-04-06 | 1923-10-06 | 1924-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-04-06 | 1927-10-06 | 1928-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-04-06 | 1931-10-06 | 1932-04-06 | $7700.00 | Window Closed / Lapsed |