US2865177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for solidifying porous materials
Assignee: Chemject Corp
•
Filing: 1954-07-07
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Granted: 1958-12-23
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Expires: 1974-07-07
Abstract
No abstract record available.
Inventors
- 👤 Robert J Gnaedinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/40; C09K17/48; Y; Y10; Y10S; Y10S106/00; Y10S106/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1009159A
Cited
US2651619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |