Patent US2715249A successfully refreshed from Google Patents.
US2715249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swingable book window
Assignee: Individual
•
Filing: 1954-04-07
•
Granted: 1955-08-16
•
Expires: 1974-04-07
Abstract
No abstract record available.
Inventors
- 👤 Sr George R Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:46
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0814; Y10T292/0817; Y10T292/0894; Y10T292/0895; Y10T292/0902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
NL65770C
Cited
US391405A
Cited
US859459A
Cited
US894115A
Cited
US977712A
Cited
US1589874A
Cited
US2031875A
Cited
US2256097A
Cited
US2324139A
Cited
US2397803A
Cited
FR932857A
Cited
AT169184B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |