Patent US2778520A successfully refreshed from Google Patents.
US2778520A
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US
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Assignee: Individual
•
Filing: 1954-07-20
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Granted: 1957-01-22
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Expires: 1974-07-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:16
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/40; B65D41/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US775652A
Cited
US1154853A
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US1180864A
Cited
US1715882A
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US1706720A
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US2030884A
Cited
US2156258A
Cited
US2397949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |