Patent US3410443A successfully refreshed from Google Patents.
US3410443A
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US
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Thermally insulating filler
Assignee: Linde GmbH
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Filing: 1966-05-17
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Granted: 1968-11-12
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Expires: 1986-05-17
Abstract
No abstract record available.
Inventors
- 👤 Albert Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:26
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/08; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; F16L59/02; F16L59/14; F17; F17C; F17C13/00; F17C13/001; F17C2203/00; F17C2203/03; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0646; F17C2203/0658; F17C2203/066; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2260/00; F17C2260/01; F17C2260/012; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2079374A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |