US2561891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating fabric
Assignee: Johns Manville Corp
•
Filing: 1949-07-28
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Granted: 1951-07-24
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Expires: 1969-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jesse L Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
A; A41; A41D; A41D19/00; A41D19/015; A41D19/01529; A41D31/00; A41D31/04; A41D31/06; A41D31/065; Y; Y10; Y10S; Y10S138/00; Y10S138/10; Y10S220/00; Y10S220/09; Y10S297/00; Y10S297/05; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T442/00; Y10T442/30; Y10T442/3382; Y10T442/3415
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A FLEXIBLE FABRIC COMPRISING OUTER AND INNER LAMINATIONS OF FLEXIBLE ASBESTOS CLOTH AND AN INTERMEDIATE LAMINATION OF METAL FOIL.
Claim 2
Dependent Claim
19 words
A FLEXIBLE FABRIC COMPRISING OUTER AND INNER LAMINATIONS OF FLEXIBLE ASBESTOS CLOTH AND AN INTERMEDIATE LAMINATION OF METAL FOIL.
References Cited (Backward Citations)
US1611031A
Cited
GB292299A
Cited
US1730763A
Cited
US2038378A
Cited
US2107901A
Cited
GB446943A
Cited
US2389579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |