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Patent US3535258A successfully refreshed from Google Patents.
US3535258A
Expired / Lapsed
US
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Machine dishwashing composition and process
Assignee: WR Grace and Co
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Filing: 1967-12-04
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Granted: 1970-10-20
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Expires: 1987-12-04
Abstract
No abstract record available.
Inventors
- 👤 Philip M Sabatelli
- 👤 Charles A Brungs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:40
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; C11D7/00; C11D7/02; C11D7/04; C11D7/06; C11D7/10; C11D7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3308067A
Cited
US3393153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |