Patent US3023577A successfully refreshed from Google Patents.
US3023577A
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US
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Gas turbine with heat exchanger
Assignee: Williams International Corp
•
Filing: 1955-10-24
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Granted: 1962-03-06
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Expires: 1975-10-24
Abstract
No abstract record available.
Inventors
- 👤 Sam B Williams
- 👤 Jack J Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:13
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/04; F02C3/10; F02C3/103; F02C7/00; F02C7/08; F02C7/10; F02C7/105; F23; F23R; F23R3/00; F23R3/42
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |