US2671990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing wallboard joint tape
Assignee: MARVAN Corp
•
Filing: 1950-05-01
•
Granted: 1954-03-16
•
Expires: 1970-05-01
Abstract
No abstract record available.
Inventors
- 👤 Lou C Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:02
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/002
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US328125A
Cited
US396553A
Cited
US1357350A
Cited
US1634997A
Cited
US2164959A
Cited
US2180433A
Cited
US2252818A
Cited
US2479095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |