US2207157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial bristle and method of making same
Assignee: Celanese Coatings Co
•
Filing: 1937-10-07
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Granted: 1940-07-09
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Expires: 1957-10-07
Abstract
No abstract record available.
Inventors
- 👤 Harvey A Neville
- 👤 William C Forbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/023; A46D1/0238; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2976
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) | 1943-07-09 | 1944-01-08 | 1944-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-09 | 1948-01-08 | 1948-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-09 | 1952-01-08 | 1952-07-09 | $7700.00 | Window Closed / Lapsed |