US3489183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruded article
Assignee: Saint Gobain Isover G+H AG
•
Filing: 1966-02-01
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Granted: 1970-01-13
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Hans Eberle
- 👤 Gerhard Wuttke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:39
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/022; F16L59/023; B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C44/507; F16L59/024; B29L; B29L2023/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1376; Y10T428/139
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US208419A
Cited
US652975A
Cited
US727786A
Cited
GB395239A
Cited
GB821899A
Cited
US3191632A
Cited
US3203653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |