US1970029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for forming channeled strips
Assignee: SCHUMACHER WALL BOARD Corp
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Filing: 1933-07-07
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Granted: 1934-08-14
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Expires: 1953-07-07
Abstract
No abstract record available.
Inventors
- 👤 Brunner Albert Harold
- 👤 Harry H Tice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
B; B31; B31D; B31D5/00; B31D5/0039; B31D5/0073; B31D5/0078; B31D5/04; B31F; B31F1/00; B31F1/0003; B31F1/0006; B31F1/0009; B31F1/0019; E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; E04C2/30; E04C2/32; E04C2/324; B31D2205/00; B31D2205/0005; B31D2205/0011; B31D2205/0017; B31D2205/0023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-08-13 | 1938-02-12 | 1938-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-13 | 1942-02-12 | 1942-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-13 | 1946-02-12 | 1946-08-14 | $7700.00 | Window Closed / Lapsed |