US3500437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marker device
Assignee: Kimberly Clark Tissue Co
•
Filing: 1968-04-09
•
Granted: 1970-03-10
•
Expires: 1988-04-09
Abstract
No abstract record available.
Inventors
- 👤 Donald R Foerster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:56
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/34; G01N33/346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1271004A
Cited
US2254197A
Cited
US2264873A
Cited
US2896196A
Cited
US3170139A
Cited
US3404628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |