US3503200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of forming twisted structures
Assignee: Brunswick Corp
•
Filing: 1968-02-21
•
Granted: 1970-03-31
•
Expires: 1988-02-21
Abstract
No abstract record available.
Inventors
- 👤 John A Roberts
- 👤 Joseph R Quirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:37
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/02; D02G3/12; Y; Y10; Y10S; Y10S57/00; Y10S57/901; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 0
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US3370347A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |