Patent US2316254A successfully refreshed from Google Patents.
Patent US2720766A successfully refreshed from Google Patents.
US2720766A
Expired / Lapsed
US
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Combined napkin and coaster
Assignee: Individual
•
Filing: 1953-01-12
•
Granted: 1955-10-18
•
Expires: 1973-01-12
Abstract
No abstract record available.
Inventors
- 👤 Helburn Betsy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:05
CPC Classifications
A; A47; A47G; A47G11/00; A47G11/001; A47G23/00; A47G23/03; A47G23/032; Y; Y10; Y10T; Y10T428/00; Y10T428/249921
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |