Patent US2764688A successfully refreshed from Google Patents.
US2764688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric trigger circuits
Assignee: International Standard Electric Corp
•
Filing: 1953-12-15
•
Granted: 1956-09-25
•
Expires: 1973-12-15
Abstract
No abstract record available.
Inventors
- 👤 Grayson Harry
- 👤 Brewster Arthur Edward
- 👤 Walker Thomas Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:44
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/504; G06F7/383; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/41; G11C11/411; G11C11/4113; G11C19/00; G11C19/28; H; H03; H03B; H03B19/00; H03B19/06; H03B19/14; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/64; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K23/00; H03K23/002; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/30; H04; H04L; H04L25/00; H04L25/02; H04L25/20; H04L25/24; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/32; H04Q1/36; G06F2207/00; G06F2207/38; G06F2207/48; G06F2207/4802; G06F2207/4806
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |