US2773504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loose-leaf binders
Assignee: Individual
•
Filing: 1952-12-30
•
Granted: 1956-12-11
•
Expires: 1972-12-30
Abstract
No abstract record available.
Inventors
- 👤 Mcgervey Daniel Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:31
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/02; B42F13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1343103A
Cited
GB231845A
Cited
DE467846C
Cited
US2007763A
Cited
US2139843A
Cited
US2550597A
Cited
US2559556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |