Patent US2835522A successfully refreshed from Google Patents.
US2835522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinged support
Assignee: Marshall Serto & Co
•
Filing: 1955-07-28
•
Granted: 1958-05-20
•
Expires: 1975-07-28
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand N Serto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:50
CPC Classifications
A; A47; A47B; A47B1/00; A47B1/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US195325A
Cited
US1552988A
Cited
US1713116A
Cited
US1840492A
Cited
US1788102A
Cited
US1874424A
Cited
US1918040A
Cited
US2278810A
Cited
US2284003A
Cited
GB616801A
Cited
US2456037A
Cited
US2577399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |