US1559846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnated material and process of producing same
Assignee: Bakelite Corp
•
Filing: 1923-04-18
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Granted: 1925-11-03
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Expires: 1943-04-18
Abstract
No abstract record available.
Inventors
- 👤 Brown Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:10
CPC Classifications
D; D21; D21J; D21J1/00; D21J1/16; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24983; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
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) | 1928-11-02 | 1929-05-04 | 1929-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-02 | 1933-05-04 | 1933-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-02 | 1937-05-04 | 1937-11-03 | $7700.00 | Window Closed / Lapsed |