US3438216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic recovery vaporizer
Assignee: Texas Eastern Transmission Corp
•
Filing: 1967-05-09
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Granted: 1969-04-15
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Expires: 1987-05-09
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:13
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; F17C9/04; F02; F02C; F02C6/00; F02C6/18; F02C7/00; F02C7/12; F02C7/14; F02C7/141; F02C7/143; F17C2221/00; F17C2221/03; F17C2221/031; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2227/00; F17C2227/03; F17C2227/0367; F17C2227/0388; F17C2227/0393
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3237413A
Cited
US3266261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |