US3083556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annealing apparatus
Assignee: Monsanto Chemicals Ltd
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Filing: 1961-11-10
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Granted: 1963-04-02
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Expires: 1981-11-10
Abstract
No abstract record available.
Inventors
- 👤 Stephen V Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:06
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/28; D; D02; D02J; D02J13/00; D02J13/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A SEAL FOR CONFINING A PRESSURE MEDIUM TO AN AREA THROUGH WHICH A FILAMENT IS TO BE PASSED, COMPRISING A WALL SURROUNDING SAID AREA AND HAVING THEREIN AN OPENING THROUGH WHICH THE FILAMENT IS TO BE ADVANCED, A PAIR OF ROLLS POSITIONED ADJACENT TO THE WALL AND ON OPPOSITE SIDES OF THE OPENING IN SAID WALL, AND A PLURALITY OF FLEXIBLE VANES ATTACHED TO EACH OF THE ROLLS FOR ENGAGING THE WALL AND THE OTHER ROLL TO SEAL THE OPENING.
Claim 2
Dependent Claim
80 words
A SEAL FOR CONFINING A PRESSURE MEDIUM TO AN AREA THROUGH WHICH A FILAMENT IS TO BE PASSED, COMPRISING A WALL SURROUNDING SAID AREA AND HAVING THEREIN AN OPENING THROUGH WHICH THE FILAMENT IS TO BE ADVANCED, A PAIR OF ROLLS POSITIONED ADJACENT TO THE WALL AND ON OPPOSITE SIDES OF THE OPENING IN SAID WALL, AND A PLURALITY OF FLEXIBLE VANES ATTACHED TO EACH OF THE ROLLS FOR ENGAGING THE WALL AND THE OTHER ROLL TO SEAL THE OPENING.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |