Patent US3418822A successfully refreshed from Google Patents.
US3418822A
Expired / Lapsed
US
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Apparatus for transporting a stream of cryogenic liquified gas
Assignee: Firewel Co Inc
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Filing: 1967-06-27
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Granted: 1968-12-31
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Expires: 1987-06-27
Abstract
No abstract record available.
Inventors
- 👤 Alton A Massey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:54
CPC Classifications
F; F17; F17C; F17C6/00; F17C2201/00; F17C2201/01; F17C2201/0147; F17C2201/0157; F17C2201/06; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0338; F17C2205/0352; F17C2205/0364; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/04; F17C2223/042; F17C2223/043; F17C2223/045; F17C2223/046; F17C2223/047; F17C2227/00; F17C2227/03; F17C2227/0302; F17C2250/00; F17C2250/06; F17C2250/0605; F17C2250/0626
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |