US2976090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace trunnion bearing construction
Assignee: Pennsylvania Engineering Corp
•
Filing: 1958-12-19
•
Granted: 1961-03-21
•
Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Harry L Mcfeaters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:43
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4633; C21C5/464; F16C19/00; F16C19/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |