US3395458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Covers or hoods for the rollers of machines for the treatment of material in web form with humidified air or steam
Assignee: Greenbank Engineering Co Ltd
•
Filing: 1965-10-07
•
Granted: 1968-08-06
•
Expires: 1985-10-07
Abstract
No abstract record available.
Inventors
- 👤 Jack D Whittaker
- 👤 Harry W Loveday
- 👤 Denis R Barbour
- 👤 Tweedle William
- 👤 George S Dryden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:36
CPC Classifications
D; D21; D21G; D21G7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1996364A
Cited
US2243427A
Cited
US2464119A
Cited
US2731732A
Cited
US2828533A
Cited
US3012335A
Cited
GB862739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |