US3035730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle cap
Assignee: WR Grace and Co
•
Filing: 1957-06-26
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Granted: 1962-05-22
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Expires: 1977-06-26
Abstract
No abstract record available.
Inventors
- 👤 Percy G Walker
- 👤 John D Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:58
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/24; B65D51/28; B65D51/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |