Patent US3451935A successfully refreshed from Google Patents.
US3451935A
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Granular enzyme-containing laundry composition
Assignee: Procter and Gamble Co
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Filing: 1967-04-12
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Granted: 1969-06-24
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Expires: 1987-04-12
Abstract
No abstract record available.
Inventors
- 👤 Arnvid Sverre Roald
- 👤 Oude Nicolaas Tieme De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:35
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/02; F02N15/04; F02N15/06; C; C11; C11D; C11D11/00; C11D11/0082; C11D11/0088; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38609; C11D3/38672; C11D3/39; C11D3/3942; D; D06; D06L; D06L1/00; D06L1/12
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) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |