US2987812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of assembling closure tips on plastic dispensing spouts
Assignee: WEST PENN CLOSURE Corp
•
Filing: 1957-06-18
•
Granted: 1961-06-13
•
Expires: 1977-06-18
Abstract
No abstract record available.
Inventors
- 👤 Leonhart N Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/01; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T29/49945; Y10T29/53; Y10T29/53313; Y10T29/53322; Y10T29/53383; Y10T29/53396
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1482151A
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US1814966A
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US1776615A
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US1974150A
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US2271746A
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US2324925A
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US2507072A
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US2636254A
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US2635328A
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US2670885A
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US2728981A
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US2681668A
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US2666255A
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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) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |