Patent US3547775A successfully refreshed from Google Patents.
US3547775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for modulating fiber stock flow in papermaking headbox in response to paper sheet product parameters
Assignee: Industrial Nucleonics Corp
•
Filing: 1966-04-29
•
Granted: 1970-12-15
•
Expires: 1986-04-29
Abstract
No abstract record available.
Inventors
- 👤 David A Bossen
- 👤 Edward J Freeh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:52
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02; D21F1/022; D21F1/06; Y; Y10; Y10S; Y10S162/00; Y10S162/06; Y10S162/09; Y10S162/10; Y10S162/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2928464A
Cited
US2951007A
Cited
US3000438A
Cited
US3073153A
Cited
US3092538A
Cited
US3407114A
Cited
US3413192A
Cited
US3490689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |