US2464765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing ampoules
Assignee: F D PALMER Inc
•
Filing: 1943-10-22
•
Granted: 1949-03-15
•
Expires: 1963-10-22
Abstract
No abstract record available.
Inventors
- 👤 Frank D Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:51
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US596319A
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US1517780A
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US1864023A
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US1945769A
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US1967603A
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DE654167C
Cited
GB454068A
Cited
US2265359A
Cited
US2227757A
Cited
US2258408A
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US2379342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |