Patent US3492155A successfully refreshed from Google Patents.
US3492155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced flexible chromatographic elements
Assignee: Eastman Kodak Co
•
Filing: 1967-09-11
•
Granted: 1970-01-27
•
Expires: 1987-09-11
Abstract
No abstract record available.
Inventors
- 👤 Albert D Baitsholts
- 👤 Richard E Ardell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/2803; B01J20/281; B01J20/286; B01J20/30; B01J20/32; B01J20/3202; B01J20/3206; B01J20/3208; B01J20/3212; B01J20/3231; B01J20/3234; B01J20/3236; G; G01; G01N; G01N30/00; G01N30/90; G01N30/92; G01N30/93; B01J2220/00; B01J2220/50; B01J2220/54; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/258
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3179587A
Cited
US3418152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |