Patent US3140594A successfully refreshed from Google Patents.
US3140594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annealing apparatus
Assignee: Monsanto Co
•
Filing: 1963-04-22
•
Granted: 1964-07-14
•
Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Ernest P Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:44
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/02; D01D10/04; D01D10/0436
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
AN APPARATUS FOR ANNEALING A FILAMENT, COMPRISING AN ELONGATED ANNEALING CHAMBER, A RECESSED WALL IN THE END OF SAID CHAMBER HAVING A PASSAGEWAY EXTENDING THERETHROUGH, A CLOSURE MEMBER MOVABLE INTO THE RECESS TO CLOSE THE PASSAGEWAY, SAID PASSAGEWAY INTERSECTING THE SURFACE OF THE CLOSURE MEMBER AT SUBSTANTIALLY A TANGENT TO SAID CLOSURE MEMBER, AND MEANS FOR INTRODUCING STEAM INTO THE CHAMBER.
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |