US2885257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament drawing mechanism
Assignee: —
•
Filing: 1954-03-22
•
Granted: 1959-05-05
•
Expires: 1974-03-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:57
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/03; Y; Y10; Y10T; Y10T24/00; Y10T24/36; Y10T24/3632; Y10T24/3638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2054786A
Cited
US2067251A
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US2159102A
Cited
US2133238A
Cited
US2161348A
Cited
US2206060A
Cited
US2526775A
Cited
US2527502A
Cited
US2682144A
Cited
US2535561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |