Patent US2706156A successfully refreshed from Google Patents.
US2706156A
Expired / Lapsed
US
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Method of making sheet material
Assignee: Hurlbut Paper Co
•
Filing: 1952-02-19
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Granted: 1955-04-12
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Expires: 1972-02-19
Abstract
No abstract record available.
Inventors
- 👤 Hanns F Arledter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:27
CPC Classifications
D; D21; D21H; D21H13/00; D21H13/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1606595A
Cited
US1646605A
Cited
US1829585A
Cited
US2066399A
Cited
US2184316A
Cited
US2327991A
Cited
US2446119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |