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Patent US2717536A successfully refreshed from Google Patents.
US2717536A
Expired / Lapsed
US
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Conditioning paper-making stock
Assignee: ROTAREAED Corp
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Filing: 1953-07-22
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Granted: 1955-09-13
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Expires: 1973-07-22
Abstract
No abstract record available.
Inventors
- 👤 Carleton L Clark
- 👤 William W Hickey
- 👤 Robert G Kaiser
- 👤 James A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:00
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/26; B; B04; B04C; B04C5/00; B04C5/24; B04C5/28; B04C9/00; C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/681; C08G59/685; C08K; C08K5/00; C08K5/04; C08K5/13; D21D5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2346005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |