US3114840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat shielding, drapeable curtain material
Assignee: 3M Co
•
Filing: 1959-11-23
•
Granted: 1963-12-17
•
Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 James E Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:15
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; A; A47; A47H; A47H23/00; A47H23/02; A47H23/08; A47H23/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162; Y10T428/31678; Y10T428/31692; Y10T428/31696
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A HEAT-SHIELDING FLEXIBLE AND DRAPEABLE LAMINATED CURTAIN MATERIAL COMPRISING A VISUALLY-EXPOSED RADIANT HEAT-REFLECTIVE METAL FILM, A FABRIC BACKING, AND AN ENTRIX
Claim 2
Dependent Claim
21 words
A HEAT-SHIELDING FLEXIBLE AND DRAPEABLE LAMINATED CURTAIN MATERIAL COMPRISING A VISUALLY-EXPOSED RADIANT HEAT-REFLECTIVE METAL FILM, A FABRIC BACKING, AND AN ENTRIX
References Cited (Backward Citations)
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US2460795A
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US2656295A
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US2703772A
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US2744878A
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US2732318A
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US2938937A
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US2912392A
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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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |