US2833607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional platform with nesting sections
Assignee: Individual
•
Filing: 1955-03-28
•
Granted: 1958-05-06
•
Expires: 1975-03-28
Abstract
No abstract record available.
Inventors
- 👤 Mackintosh Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
A; A47; A47B; A47B7/00; A47B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1520518A
Cited
US1930741A
Cited
GB455999A
Cited
US2565065A
Cited
US2596663A
Cited
US2657965A
Cited
US2661988A
Cited
US2700582A
Cited
US2694609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |