US1140601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for forming cementitious insulating-sheets.
Assignee: UNION FIBRE Co
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Filing: 1913-05-15
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Granted: 1915-05-25
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Expires: 1933-05-15
Abstract
No abstract record available.
Inventors
- 👤 James E Lappen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/04
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) | 1918-05-24 | 1918-11-23 | 1919-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-05-24 | 1922-11-23 | 1923-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-05-24 | 1926-11-23 | 1927-05-25 | $7700.00 | Window Closed / Lapsed |