US2456358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resins and process of making
Assignee: Honeywell International Inc
•
Filing: 1945-10-31
•
Granted: 1948-12-14
•
Expires: 1965-10-31
Abstract
No abstract record available.
Inventors
- 👤 Harry L Allen
- 👤 Earl G Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:10
CPC Classifications
C; C08; C08F; C08F240/00; C08G; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218; C08G16/0225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2375960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |