US2816342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form clamps
Assignee: Individual
•
Filing: 1952-12-01
•
Granted: 1957-12-17
•
Expires: 1972-12-01
Abstract
No abstract record available.
Inventors
- 👤 Hyre Robert Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:40
CPC Classifications
E; E04; E04G; E04G13/00; E04G13/02; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1416; Y10T24/21; Y10T24/2191
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1467943A
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US352039A
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US645845A
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GB189911630A
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US786900A
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US779279A
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US1144778A
Cited
US1299511A
Cited
US1420588A
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US1454502A
Cited
US1634847A
Cited
US1978646A
Cited
US2386836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |