US3520747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making structural members of layers of corrosion resistant coatings and fibrous material
Assignee: POLYMER ENTERPRISES Inc
•
Filing: 1965-10-29
•
Granted: 1970-07-14
•
Expires: 1985-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert S Mcgaughey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:13
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/50; B05D7/52; B29; B29C; B29C67/00; B29C67/24; F; F16; F16C; F16C13/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947; Y10T428/2964; Y10T428/2967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB579355A
Cited
US2597858A
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US2614058A
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US2706166A
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US2804678A
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US2943009A
Cited
US3042995A
Cited
US3424647A
Cited
US3366514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |