US2970079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface coated impregnated waterleaf
Assignee: EIDP Inc
•
Filing: 1956-05-22
•
Granted: 1961-01-31
•
Expires: 1976-05-22
Abstract
No abstract record available.
Inventors
- 👤 Klacsmann John Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:54
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H13/00; D21H13/10; D21H13/12; D21H13/18; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/37; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T442/00; Y10T442/20; Y10T442/2549; Y10T442/2566
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2774687A
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US2795524A
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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) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |