US3244302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous glass air filters
Assignee: Owens Corning
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Filing: 1961-08-11
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Granted: 1966-04-05
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Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 James R Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:35
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/20; B01D39/2003; B01D39/2017; B01D39/2024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE METHOD OF FORMING A FRAMED FIBROUS GLASS AIR FILTERING UNIT WHCIH COMPRISES COLLECTING GLASS FIBERS IN A LOW DENSITY FLAT PACK IMPREGNATED WITH AN UNSET BINDING AGENT, PLACING RECTANGULAR FRAMING MATERIAL AT ONE SIDE OF THE PACK, SEVERELY COMPRESSING AN OUTLINE PORTION OF THE PACK AGAINST THE FRAMING MATERIAL WITH SUFFICIENT PRESSURE TO SQUEEZE SOME OF THE UNSET BINDING AGENT OUTWARDLY INTO CONTACT WITH THE FRAMING MATERIAL, THE PORTION OF THE PACK SURROUNDED BY THE OUTLINE PORTION BEING LEFT SUBSTANTIALLY UNCOMPRESSED, AND THEN SETTING THE BINDER OF SAID OUTLINE PORTION, WHEREBY THE FIBERS THEREIN ARE FIRMLY BOND TOGETHER IN A THIN WEB AND THE WEB IS ADHERED BY THE SET BINDER TO THE FRAMING MATERIAL.
Claim 2
Independent Claim
116 words
THE METHOD OF FORMING A FRAMED FIBROUS GLASS AIR FILTERING UNIT WHCIH COMPRISES COLLECTING GLASS FIBERS IN A LOW DENSITY FLAT PACK IMPREGNATED WITH AN UNSET BINDING AGENT, PLACING RECTANGULAR FRAMING MATERIAL AT ONE SIDE OF THE PACK, SEVERELY COMPRESSING AN OUTLINE PORTION OF THE PACK AGAINST THE FRAMING MATERIAL WITH SUFFICIENT PRESSURE TO SQUEEZE SOME OF THE UNSET BINDING AGENT OUTWARDLY INTO CONTACT WITH THE FRAMING MATERIAL, THE PORTION OF THE PACK SURROUNDED BY THE OUTLINE PORTION BEING LEFT SUBSTANTIALLY UNCOMPRESSED, AND THEN SETTING THE BINDER OF SAID OUTLINE PORTION, WHEREBY THE FIBERS THEREIN ARE FIRMLY BOND TOGETHER IN A THIN WEB AND THE WEB IS ADHERED BY THE SET BINDER TO THE FRAMING MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |