US2865466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas filter and adhesive therefor
Assignee: Research Products Corp
•
Filing: 1955-03-07
•
Granted: 1958-12-23
•
Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 Stanley H Frohmader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:27
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A GAS FILTER COMPRISING A GAS-PERVIOUS FILTER BASE AND A DUST-CATCHING ADHESIVE ON THE SURFACES OF SAID FILTER BASE, SAID ADHESIVE COMPRISING A SELF-EMULSIFIABLE MINERAL OIL CONTAINING DISPERED THEREIN AN OLEOPHILIC THICKENER FOR SAID OIL, SAID THICKENER BEING PRESENT IN AN AMOUNT SUFFICIENT TO IMPART A NON-DRIPPING CHARACTER TO SAID ADHESIVE.
Claim 2
Dependent Claim
51 words
A GAS FILTER COMPRISING A GAS-PERVIOUS FILTER BASE AND A DUST-CATCHING ADHESIVE ON THE SURFACES OF SAID FILTER BASE, SAID ADHESIVE COMPRISING A SELF-EMULSIFIABLE MINERAL OIL CONTAINING DISPERED THEREIN AN OLEOPHILIC THICKENER FOR SAID OIL, SAID THICKENER BEING PRESENT IN AN AMOUNT SUFFICIENT TO IMPART A NON-DRIPPING CHARACTER TO SAID ADHESIVE.
References Cited (Backward Citations)
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US2083132A
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US2556722A
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US2627938A
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US2653909A
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US2751039A
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US2751040A
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US2789093A
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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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |