US3415083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating sheetlike material under sub- or superatmospheric pressure
Assignee: Wakayama Iron Works Ltd
•
Filing: 1966-12-05
•
Granted: 1968-12-10
•
Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Okazaki Narukazu
- 👤 Ishimaru Joyu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:53
CPC Classifications
D; D06; D06B; D06B23/00; D06B23/14; D06B23/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |