US3383273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible sheet material
Assignee: Dunlop Co Ltd
•
Filing: 1963-10-31
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Granted: 1968-05-14
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Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Pearson Roland William
- 👤 Daruwalla Dolly Faredoon
- 👤 Parlour Brian Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:45
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/02; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2909; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/627; Y10T442/659; Y10T442/666; Y10T442/667
Claims Analysis
Total Claims: 0
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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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |