US2468759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical process
Assignee: Beazer East Inc
•
Filing: 1945-07-13
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Granted: 1949-05-03
•
Expires: 1965-07-13
Abstract
No abstract record available.
Inventors
- 👤 Johnson Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:05
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/48; C07C29/50; C07C1/00; C07C1/20; C07C1/24; C07C15/00; C07C15/40; C07C15/56; C07C15/58; C07C29/132; C07C29/136; C07C29/143; C07C29/145; C07C2521/00; C07C2521/02; C07C2521/04; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93; Y10S585/934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |