US2311573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material for wrapping pipes and for covering metallic surfaces
Assignee: Dearborn Chemical Co
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Filing: 1940-05-04
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Granted: 1943-02-16
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Expires: 1960-05-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Shoan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; E; E04; E04B; E04B1/00; E04B1/62; E04B1/64; E04B1/642; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24612; Y10T428/24628; Y10T428/24636; Y10T428/31504; Y10T428/31652; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-02-15 | 1946-08-17 | 1947-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-15 | 1950-08-17 | 1951-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-15 | 1954-08-17 | 1955-02-16 | $7700.00 | Window Closed / Lapsed |