US2807371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Table supported article holder
Assignee: Individual
•
Filing: 1952-11-12
•
Granted: 1957-09-24
•
Expires: 1972-11-12
Abstract
No abstract record available.
Inventors
- 👤 Stewart H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:58
CPC Classifications
B; B42; B42D; B42D17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US112819A
Cited
US321152A
Cited
US437637A
Cited
US554843A
Cited
US1040016A
Cited
US1469133A
Cited
US1738557A
Cited
US1839862A
Cited
US2061302A
Cited
US2405517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |