Patent US3366093A successfully refreshed from Google Patents.
US3366093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Start-up system for once-through vapor generators
Assignee: Foster Wheeler Inc
•
Filing: 1966-02-28
•
Granted: 1968-01-30
•
Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 William D Stevens
- 👤 Albert J Zipay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:47
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/06; F22B35/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2989038A
Cited
US3220193A
Cited
US3175367A
Cited
US3194217A
Cited
US3183896A
Cited
US3259111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |