Patent US2984585A successfully refreshed from Google Patents.
US2984585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated web with water vapor barrier resistance
Assignee: H P SMITH PAPER CO
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Filing: 1957-07-05
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Granted: 1961-05-16
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Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 Sherman Clayton Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:10
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; D21H19/20; D21H19/22; D21H19/80; D21H19/82; D21H19/824; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31801
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A PAPER COATED WITH ABOUT 0.5 TO 87 POUNDS OF POLYETHYLENE ON ONE SIDE, AND 0.1 TO 15 POUNDS OF WAX ON THE POLYETHYLENE COATING, PER EACH 3000 SQUARE FEET OF PAPER.
Claim 2
Dependent Claim
32 words
A PAPER COATED WITH ABOUT 0.5 TO 87 POUNDS OF POLYETHYLENE ON ONE SIDE, AND 0.1 TO 15 POUNDS OF WAX ON THE POLYETHYLENE COATING, PER EACH 3000 SQUARE FEET OF PAPER.
References Cited (Backward Citations)
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US2642366A
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Cited
US2714571A
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US2754278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |