US3410185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marking
Assignee: 3M Co
•
Filing: 1966-08-08
•
Granted: 1968-11-12
•
Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:28
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/16; E01C23/20; E01C23/206; E01F; E01F9/00; E01F9/50; E01F9/506
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |