US2464490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous envelope assemblies
Assignee: Individual
•
Filing: 1944-09-15
•
Granted: 1949-03-15
•
Expires: 1964-09-15
Abstract
No abstract record available.
Inventors
- 👤 Davies Herbert Vaughan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:01
CPC Classifications
B; B42; B42D; B42D5/00; B42D5/02; B42D5/023; B42D5/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE602699C
Cited
US722038A
Cited
US2013844A
Cited
US2342702A
Cited
US2351805A
Cited
US2332637A
Cited
US2332638A
Cited
US2304523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |