Patent US2807704A successfully refreshed from Google Patents.
US2807704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic image fixing apparatus
Assignee: International Business Machines Corp
•
Filing: 1956-06-14
•
Granted: 1957-09-24
•
Expires: 1976-06-14
Abstract
No abstract record available.
Inventors
- 👤 Richard C Allen
- 👤 John H Lego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:45
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2007; G06; G06K; G06K15/00; G06K15/02; G06K15/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1575366A
Cited
US2420399A
Cited
US2551582A
Cited
US2549546A
Cited
US2565570A
Cited
US2573881A
Cited
US2701765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |