US3481257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin-walnut shell aggregate wear resistant floor toppings
Assignee: Hi Tek Polymers Inc
•
Filing: 1966-09-26
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Granted: 1969-12-02
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Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 David Alan Shimp
- 👤 William Sheppard Bobo Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:41
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C09; C09D; C09D163/00; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2461900A
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US2507465A
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US2682517A
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US2805448A
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US2894920A
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US3304344A
Cited
US3203913A
Cited
US3314205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |