Patent US3463735A successfully refreshed from Google Patents.
US3463735A
Expired / Lapsed
US
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Glass cleaning composition
Assignee: Drackett Co
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Filing: 1967-10-18
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Granted: 1969-08-26
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Expires: 1987-10-18
Abstract
No abstract record available.
Inventors
- 👤 Melvin E Stonebraker
- 👤 Samuel P Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:25
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/43
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) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |