US3447572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced thermoset plastic pipe
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1966-11-08
•
Granted: 1969-06-03
•
Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Byron M Vanderbilt
- 👤 Charles F Marsden Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:36
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; F; F16; F16L; F16L11/00; F16L11/04; B29K; B29K2021/00; B29K2105/00; B29K2105/06; F16L2011/047; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31855; Y10T428/31909; Y10T428/31924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2448584A
Cited
US2609353A
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US2625526A
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US2602037A
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US2969812A
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US2815043A
Cited
US2845411A
Cited
US3044913A
Cited
US3018266A
Cited
US3235625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |