US3418970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper coating apparatus
Assignee: Black Clawson Co
•
Filing: 1964-11-02
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Granted: 1968-12-31
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 Richard W Phelps
- 👤 James T Coghill
- 👤 Robert E Ingison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:06
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/46; B; B05; B05C; B05C5/00; B05C5/02; B05C5/0254; D06; D06B; D06B1/00; D06B1/08; D21H5/00; D21H5/0005; D21H5/0042; B05C11/00; B05C11/02; B05C11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB447219A
Cited
US2349256A
Cited
US2796847A
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US3063868A
Cited
US3192895A
Cited
US3169082A
Cited
US3196832A
Cited
US3285225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |