US3549456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making tubular articles from blankets of uncured fibrous mat
Assignee: Certain Teed Saint Gobain Insulation Corp
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Filing: 1969-05-27
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Granted: 1970-12-22
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Expires: 1989-05-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick N Stephens
- 👤 Stuart J Burhans
- 👤 Joseph T Warkoczewski
- 👤 Jack M Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:10
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; B29K; B29K2503/00; B29K2503/04; B29L; B29L2023/00; B29L2023/22; B29L2023/225; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |