Patent US2929931A successfully refreshed from Google Patents.
US2929931A
Expired / Lapsed
US
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Fluorescent glass container marking
Assignee: Wyeth Holdings LLC
•
Filing: 1955-10-14
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Granted: 1960-03-22
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Expires: 1975-10-14
Abstract
No abstract record available.
Inventors
- 👤 Richter Ferdinand Joseph
- 👤 Yen Ernest Chu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:58
CPC Classifications
G; G09; G09F; G09F3/00; Y; Y10; Y10T; Y10T428/00; Y10T428/19; Y10T428/192; Y10T428/193
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) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |