US3540114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming fine filaments
Assignee: Brunswick Corp
•
Filing: 1967-11-21
•
Granted: 1970-11-17
•
Expires: 1987-11-21
Abstract
No abstract record available.
Inventors
- 👤 Peter R Roberts
- 👤 Albert D Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:46
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; B21C37/047; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/49801; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12431
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050298A
Cited
US2077682A
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US3083817A
Cited
US3223878A
Cited
US3394213A
Cited
US3277564A
Cited
US3378999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |