US3489309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessels
Assignee: Foster Wheeler Inc
•
Filing: 1966-12-13
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Granted: 1970-01-13
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Expires: 1986-12-13
Abstract
No abstract record available.
Inventors
- 👤 Irwin Berman
- 👤 Parbhubhai Kanabhai Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:59
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/02; F17C1/04; B; B01; B01J; B01J3/00; B01J3/04; B01J3/048; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0119; F17C2201/0128; F17C2201/05; F17C2201/052; F17C2201/054; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0308; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0619; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0648; F17C2203/0653; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0311; F17C2205/0323; F17C2205/0352; F17C2209/00; F17C2209/23; F17C2209/232; F17C2223/00; F17C2223/03; F17C2223/035; F17C2260/00; F17C2260/01; F17C2260/017; F17C2270/00; F17C2270/05; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1911608A
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US1159865A
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US2337247A
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US2933214A
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US3062507A
Cited
US3231338A
Cited
US3260020A
Cited
US3282459A
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 |