Patent US1758600A successfully refreshed from Google Patents.
US1758600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain portiere
Assignee: Individual
•
Filing: 1929-04-20
•
Granted: 1930-05-13
•
Expires: 1949-04-20
Abstract
No abstract record available.
Inventors
- 👤 Grassi Serafino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:52
CPC Classifications
A; A47; A47H; A47H23/00; A47H23/02; A47H23/04; A47H23/05; F; F16; F16B; F16B45/00; F16B45/005; F16B45/012; F16B45/02; F16B45/035
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) | 1933-05-12 | 1933-11-11 | 1934-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-05-12 | 1937-11-11 | 1938-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-05-12 | 1941-11-11 | 1942-05-13 | $7700.00 | Window Closed / Lapsed |