Patent US4304010A successfully refreshed from Google Patents.
US1449940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable head for metal containers
Assignee: Pressed Steel Tank Co
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Filing: 1919-08-15
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Granted: 1923-03-27
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Expires: 1939-08-15
Abstract
No abstract record available.
Inventors
- 👤 Robert H Hackney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/32; B65D2543/00; B65D2543/00009; B65D2543/00953; B65D2543/00962; B65D2543/00972; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/212; Y10T292/214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-03-26 | 1926-09-25 | 1927-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-03-26 | 1930-09-25 | 1931-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-03-26 | 1934-09-25 | 1935-03-27 | $7700.00 | Window Closed / Lapsed |