US1815372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for pressing books
Assignee: RR Donnelley and Sons Co
•
Filing: 1928-11-01
•
Granted: 1931-07-21
•
Expires: 1948-11-01
Abstract
No abstract record available.
Inventors
- 👤 Philip A Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:19
CPC Classifications
B; B42; B42C; B42C13/00; B65; B65H; B65H2404/00; B65H2404/30; B65H2404/31; B65H2404/312
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1934-07-20 | 1935-01-19 | 1935-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-07-20 | 1939-01-19 | 1939-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-07-20 | 1943-01-19 | 1943-07-21 | $7700.00 | Window Closed / Lapsed |