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Patent US3380582A successfully refreshed from Google Patents.
US3380582A
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US
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Insulating article and method
Assignee: Daubert Chemical Co Inc
•
Filing: 1965-09-03
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Granted: 1968-04-30
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Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Wendell W Moyer
- 👤 Paul J Kochalka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:57
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/62; E06B3/00; E06B3/54; E06B3/58; E06B3/62; E06B7/00; E06B7/16; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24752; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249982; Y10T428/249983; Y10T428/28; Y10T428/2813; Y10T428/2835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1960137A
Cited
US2096750A
Cited
US2249424A
Cited
US2292024A
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US2367536A
Cited
US3032181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |