US3537121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning and buffing product
Assignee: 3M Co
•
Filing: 1968-01-17
•
Granted: 1970-11-03
•
Expires: 1988-01-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Mcavoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/04; C; C11; C11D; C11D17/00; C11D17/04; C11D17/049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3026190A
Cited
US3075222A
Cited
US2958593A
Cited
US3171151A
Cited
US3232729A
Cited
US3175331A
Cited
US3431689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |