US3531688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static eliminator device
Assignee: 3M Co
•
Filing: 1968-02-08
•
Granted: 1970-09-29
•
Expires: 1988-02-08
Abstract
No abstract record available.
Inventors
- 👤 Richard A Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:56
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04; H05F3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1243262A
Cited
US1735494A
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US2048490A
Cited
US2264683A
Cited
US2333213A
Cited
US2479882A
Cited
DE886180C
Cited
DE954185C
Cited
US3264473A
Cited
US3396917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |