US3038698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for controlling gaseous flow in turbo-machinery
Assignee: Schwitzer Corp
•
Filing: 1956-08-30
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Granted: 1962-06-12
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Expires: 1976-08-30
Abstract
No abstract record available.
Inventors
- 👤 William J Troyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:34
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/462; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D5/00; F01D5/12; F01D5/14; F01D5/148; F01D9/00; F01D9/02; F01D9/04; F01D9/045; F04D27/00; F04D27/02; F04D27/0246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |