US2746534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
brqoks etal
Assignee: —
•
Filing: —
•
Granted: 1956-05-22
•
Expires: 1973-05-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:04
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/005; F23D; F23D14/00; F23D14/46; F23D14/72; F23N5/00; F23N5/02; F23N5/10; F23K; F23K2900/00; F23K2900/05001; F23N2227/00; F23N2227/22; F23N2235/00; F23N2235/12; F23N2235/14; F23N2235/16; F23N2235/18; F23N2235/20; F23N2235/24
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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |